I have explained to Nathan, that his car definately has a harsh Boost Spike, which is causing it to break traction. The result of this is an inflated Torque reading.

RS Turbo's are always tricky to RR, because they have brutal Power Delivery, which is what causes them to lose traction and also break Gearboxes, so any RR Operator will struggle.

Having looked at the graph and knowing the spec of the car, I would easily say that it is beyond 210bhp and would estimate that 240-250lb/ft is a more realistic indication of the Torque.

A Standard Head is a good way of maintaining the strong feel to a mid-powered RST, but by porting the head you smooth the peaky Torque curve out and it will feel a nicer car for it. This helps it to produce more Torque higher up the rev range, but probably less Torque in terms of a Peak. The other symptom of this is that Gearboxes will last longer!

Hope this helps.